The Cleartone 80/20 Bronze Acoustic String Set has a Unique cleartone treatment that is the thinist protective layer in the string industry

One micron, that is all that's between you and your guitars tone. cleartone strings feature emp (enhanced molecular protection), a unique micron thin layer that protects yoru strings against corrosion. cleartone strings feel and sound like an uncoated set, yet last a long, long time, giving you exactly what your playing demands: uncompromising tone with an incredible lifespan. Free chromatic cambridge labs tuner included.